Method and apparatus for recharging an energy storage device on a vehicle

Patent metadata

Field	Value
Publication number	US-10124679-B2
Application number	US-201514928283-A
Country	US
Kind code	B2
Filing date	Oct 30, 2015
Priority date	Oct 30, 2015
Publication date	Nov 13, 2018
Grant date	Nov 13, 2018

Abstract

A vehicle including an energy storage device and a powertrain system configured to effect regenerative braking is described. A method for controlling the vehicle includes determining an expected increase in a state of charge of the energy storage device achieved through opportunity charging by employing regenerative braking during an anticipated next trip of the vehicle. A preferred setpoint for the state of charge of the energy storage device is determined based upon the expected increase in the state of charge achieved through opportunity charging, and charging of the energy storage device is controlled during a remote charging event based upon the preferred setpoint for the state of charge of the energy storage device.

First claim

The invention claimed is:

1. A method for controlling a vehicle including an energy storage device and a powertrain system including regenerative braking capability, the method comprising:
determining an anticipated next trip of the vehicle;
determining an expected increase in the state of charge achieved through opportunity charging of the energy storage device employing regenerative braking during the anticipated next trip of the vehicle;
determining a desired setpoint for the state of charge of the energy storage device prior to the anticipated next trip of the vehicle based upon the expected increase in the state of charge achieved through the opportunity charging of the energy storage device during the anticipated next trip of the vehicle; and
controlling charging of the energy storage device during a remote charging event prior to the anticipated next trip of the vehicle based upon the desired setpoint for the state of charge of the energy storage device.

2. The method of claim 1 , further comprising:
monitoring a state of charge of the energy storage device;
controlling charging of the energy storage device during the remote charging event based upon the desired setpoint for the state of charge of the energy storage device and the state of charge of the energy storage device.

3. The method of claim 1 , further comprising:
determining an expected increase in the state of charge achieved through opportunity charging of the energy storage device employing regenerative braking during a portion of the anticipated next trip of the vehicle; and
determining the desired setpoint for the state of charge of the energy storage device based upon the expected increase in the state of charge during the portion of the anticipated next trip of the vehicle.

4. The method of claim 1 , wherein the vehicle further includes an on-board navigation system, and wherein determining the anticipated next trip of the vehicle comprises employing the on-board navigation system to determine expected route information for the anticipated next trip of the vehicle.

5. The method of claim 4 , comprising employing the on-board navigation system to determine the expected route information for the anticipated next trip of the vehicle based upon a present location of the vehicle.

6. The method of claim 4 , comprising:
employing the on-board navigation system to determine a present geographical location of the vehicle and an expected route information for the anticipated next trip of the vehicle; and
determining the expected increase in the state of charge achieved through opportunity charging of the energy storage device employing regenerative braking when traversing the expected route for the anticipated next trip of the vehicle.

7. The method of claim 1 , wherein controlling charging of the energy storage device comprises controlling charging of the energy storage device based upon the desired setpoint for the state of charge of the energy storage device and the monitored state of charge of the energy storage device.

8. The method of claim 1 , further comprising:
determining an expected increase in the state of charge achieved through opportunity charging of the energy storage employing the regenerative braking of the powertrain system during a portion of an anticipated next trip of the vehicle; and
determining the desired setpoint for the state of charge of the energy storage device based upon the expected increase in the state of charge achieved through opportunity charging of the energy storage device during the portion of the anticipated next trip of the vehicle.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Zettel Andrew M
• Nitz Larry T
• Farah Andrew J
• Stout Matthew S
• Grenn Daniel P

Classifications

• B60W2556/50

  of positioning data, e.g. GPS [Global Positioning System] data · CPC title

• B60L2240/642

  Slope of road · CPC title

• Y02T90/16

  Information or communication technologies improving the operation of electric vehicles · CPC title

• B60W2510/244

  Charge state · CPC title

• B60L2220/42

  with use of more than one motor · CPC title